Copy the KDE 3.5 branch to branches/trinity for new KDE 3.5 features.

BUG:215923


git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/kdenetwork@1054174 283d02a7-25f6-0310-bc7c-ecb5cbfe19da

1 files changed, 326 insertions, 0 deletions

diff --git a/kopete/plugins/cryptography/cryptographyplugin.cpp b/kopete/plugins/cryptography/cryptographyplugin.cpp
new file mode 100644
index 00000000..701ad8bd
--- /dev/null
+++ b/kopete/plugins/cryptography/cryptographyplugin.cpp
@@ -0,0 +1,326 @@
+/***************************************************************************
+                          cryptographyplugin.cpp  -  description
+                             -------------------
+    begin                : jeu nov 14 2002
+    copyright            : (C) 2002-2004 by Olivier Goffart
+    email                : ogoffart @ kde.org
+ ***************************************************************************/
+
+/***************************************************************************
+ *                                                                         *
+ *   This program is free software; you can redistribute it and/or modify  *
+ *   it under the terms of the GNU General Public License as published by  *
+ *   the Free Software Foundation; either version 2 of the License, or     *
+ *   (at your option) any later version.                                   *
+ *                                                                         *
+ ***************************************************************************/
+
+#include <qstylesheet.h>
+#include <qtimer.h>
+#include <qregexp.h>
+
+#include <kdebug.h>
+#include <kaction.h>
+#include <kconfig.h>
+#include <kgenericfactory.h>
+#include <kdeversion.h>
+#include <kaboutdata.h>
+
+#include "kopetemetacontact.h"
+#include "kopetecontactlist.h"
+#include "kopetechatsessionmanager.h"
+#include "kopetesimplemessagehandler.h"
+#include "kopeteuiglobal.h"
+#include "kopetecontact.h"
+
+#include "cryptographyplugin.h"
+#include "cryptographyselectuserkey.h"
+#include "cryptographyguiclient.h"
+
+#include "kgpginterface.h"
+
+//This regexp try to match an HTML text,  but only some authorized tags.
+// used in slotIncomingMessage
+//There are not rules to know if the test should be sent in html or not.
+//In Jabber, the JEP says it's not. so we don't use richtext in our message, but some client did.
+//We limit the html to some basis tag to limit security problem (bad links)
+//    - Olivier
+const QRegExp CryptographyPlugin::isHTML( QString::fromLatin1( "^[^<>]*(</?(html|body|br|p|font|center|b|i|u|span|div|pre)(>|[\\s/][^><]*>)[^><]*)+$" ) , false );
+
+typedef KGenericFactory<CryptographyPlugin> CryptographyPluginFactory;
+static const KAboutData aboutdata("kopete_cryptography", I18N_NOOP("Cryptography") , "1.0" );
+K_EXPORT_COMPONENT_FACTORY( kopete_cryptography, CryptographyPluginFactory( &aboutdata )  )
+
+CryptographyPlugin::CryptographyPlugin( QObject *parent, const char *name, const QStringList & /* args */ )
+: Kopete::Plugin( CryptographyPluginFactory::instance(), parent, name ),
+		m_cachedPass()
+{
+	if( !pluginStatic_ )
+		pluginStatic_=this;
+
+	m_inboundHandler = new Kopete::SimpleMessageHandlerFactory( Kopete::Message::Inbound,
+		Kopete::MessageHandlerFactory::InStageToSent, this, SLOT( slotIncomingMessage( Kopete::Message& ) ) );
+	connect( Kopete::ChatSessionManager::self(),
+		SIGNAL( aboutToSend( Kopete::Message & ) ),
+		SLOT( slotOutgoingMessage( Kopete::Message & ) ) );
+
+	m_cachedPass_timer = new QTimer(this, "m_cachedPass_timer" );
+	QObject::connect(m_cachedPass_timer, SIGNAL(timeout()), this, SLOT(slotForgetCachedPass() ));
+
+
+	KAction *action=new KAction( i18n("&Select Cryptography Public Key..."), "encrypted", 0, this, SLOT (slotSelectContactKey()), actionCollection() , "contactSelectKey");
+	connect ( Kopete::ContactList::self() , SIGNAL( metaContactSelected(bool)) , action , SLOT(setEnabled(bool)));
+	action->setEnabled(Kopete::ContactList::self()->selectedMetaContacts().count()==1 );
+
+	setXMLFile("cryptographyui.rc");
+	loadSettings();
+	connect(this, SIGNAL(settingsChanged()), this, SLOT( loadSettings() ) );
+	
+	connect( Kopete::ChatSessionManager::self(), SIGNAL( chatSessionCreated( Kopete::ChatSession * )) , SLOT( slotNewKMM( Kopete::ChatSession * ) ) );
+	//Add GUI action to all already existing kmm (if the plugin is launched when kopete already rining)
+	QValueList<Kopete::ChatSession*> sessions = Kopete::ChatSessionManager::self()->sessions();
+	for (QValueListIterator<Kopete::ChatSession*> it= sessions.begin(); it!=sessions.end() ; ++it)
+	{
+		slotNewKMM(*it);
+	}
+
+}
+
+CryptographyPlugin::~CryptographyPlugin()
+{
+	delete m_inboundHandler;
+	pluginStatic_ = 0L;
+}
+
+void CryptographyPlugin::loadSettings()
+{
+	KConfig *config = KGlobal::config();
+	config->setGroup("Cryptography Plugin");
+
+	mPrivateKeyID = config->readEntry("PGP_private_key");
+	mAlsoMyKey = config->readBoolEntry("Also_my_key", false);
+
+	if(config->readBoolEntry("Cache_Till_App_Close", false))
+	  mCachePassPhrase = Keep;
+	if(config->readBoolEntry("Cache_Till_Time", false))
+	  mCachePassPhrase = Time;
+	if(config->readBoolEntry("Cache_Never", false))
+	  mCachePassPhrase = Never;
+	mCacheTime = config->readNumEntry("Cache_Time", 15);
+	mAskPassPhrase = config->readBoolEntry("No_Passphrase_Handling", false);
+}
+
+CryptographyPlugin* CryptographyPlugin::plugin()
+{
+	return pluginStatic_ ;
+}
+
+CryptographyPlugin* CryptographyPlugin::pluginStatic_ = 0L;
+
+QCString CryptographyPlugin::cachedPass()
+{
+	return pluginStatic_->m_cachedPass;
+}
+
+void CryptographyPlugin::setCachedPass(const QCString& p)
+{
+	if(pluginStatic_->mCacheMode==Never)
+		return;
+	if(pluginStatic_->mCacheMode==Time)
+		pluginStatic_->m_cachedPass_timer->start(pluginStatic_->mCacheTime * 60000, false);
+
+	pluginStatic_->m_cachedPass=p;
+}
+
+bool CryptographyPlugin::passphraseHandling()
+{
+	return !pluginStatic_->mAskPassPhrase;
+}
+
+
+/*KActionCollection *CryptographyPlugin::customChatActions(Kopete::ChatSession *KMM)
+{
+	delete m_actionCollection;
+
+	m_actionCollection = new KActionCollection(this);
+	KAction *actionTranslate = new KAction( i18n ("Translate"), 0,
+		this, SLOT( slotTranslateChat() ), m_actionCollection, "actionTranslate" );
+	m_actionCollection->insert( actionTranslate );
+
+	m_currentChatSession=KMM;
+	return m_actionCollection;
+}*/
+
+void CryptographyPlugin::slotIncomingMessage( Kopete::Message& msg )
+{
+ 	QString body = msg.plainBody();
+	if( !body.startsWith( QString::fromLatin1("-----BEGIN PGP MESSAGE----") )
+		 || !body.contains( QString::fromLatin1("-----END PGP MESSAGE----") ) )
+		return;
+
+	if( msg.direction() != Kopete::Message::Inbound )
+	{
+		QString plainBody;
+		if ( m_cachedMessages.contains( body ) )
+		{
+			plainBody = m_cachedMessages[ body ];
+			m_cachedMessages.remove( body );
+		}
+		else
+		{
+			plainBody = KgpgInterface::KgpgDecryptText( body, mPrivateKeyID );
+		}
+
+		if( !plainBody.isEmpty() )
+		{
+			//Check if this is a RTF message before escaping it
+			if( !isHTML.exactMatch( plainBody ) )
+			{
+				plainBody = QStyleSheet::escape( plainBody );
+
+				//this is the same algoritm as in Kopete::Message::escapedBody();
+				plainBody.replace( QString::fromLatin1( "\n" ), QString::fromLatin1( "<br/>" ) )
+					.replace( QString::fromLatin1( "\t" ), QString::fromLatin1( "&nbsp;&nbsp;&nbsp;&nbsp;" ) )
+					.replace( QRegExp( QString::fromLatin1( "\\s\\s" ) ), QString::fromLatin1( "&nbsp; " ) );
+			}
+
+			msg.setBody( QString::fromLatin1("<table width=\"100%\" border=0 cellspacing=0 cellpadding=0><tr><td class=\"highlight\"><font size=\"-1\"><b>")
+				+ i18n("Outgoing Encrypted Message: ")
+				+ QString::fromLatin1("</b></font></td></tr><tr><td class=\"highlight\">")
+				+ plainBody
+				+ QString::fromLatin1(" </td></tr></table>")
+				, Kopete::Message::RichText );
+		}
+
+		//if there are too messages in cache, clear the cache
+		if(m_cachedMessages.count() > 5)
+			m_cachedMessages.clear();
+
+		return;
+	}
+
+
+	//the Message::unescape is there because client like fire replace linebreak by <BR> to work even if the protocol doesn't allow newlines (IRC)
+	// cf http://fire.sourceforge.net/forums/viewtopic.php?t=174  and Bug #96052
+	if(body.contains("<"))  
+		body= Kopete::Message::unescape(body);
+
+	body = KgpgInterface::KgpgDecryptText( body, mPrivateKeyID );
+
+	if( !body.isEmpty() )
+	{
+		//Check if this is a RTF message before escaping it
+		if( !isHTML.exactMatch( body ) )
+		{
+			body = Kopete::Message::escape( body );
+		}
+
+		msg.setBody( QString::fromLatin1("<table width=\"100%\" border=0 cellspacing=0 cellpadding=0><tr><td class=\"highlight\"><font size=\"-1\"><b>")
+			+ i18n("Incoming Encrypted Message: ")
+			+ QString::fromLatin1("</b></font></td></tr><tr><td class=\"highlight\">")
+			+ body
+			+ QString::fromLatin1(" </td></tr></table>")
+			, Kopete::Message::RichText );
+	}
+
+}
+
+void CryptographyPlugin::slotOutgoingMessage( Kopete::Message& msg )
+{
+	if(msg.direction() != Kopete::Message::Outbound)
+		return;
+
+	QStringList keys;
+	QPtrList<Kopete::Contact> contactlist = msg.to();
+	for( Kopete::Contact *c = contactlist.first(); c; c = contactlist.next() )
+	{
+		QString tmpKey;
+		if( c->metaContact() )
+		{
+			if(c->metaContact()->pluginData( this, "encrypt_messages"  ) == "off" )
+				return;
+			tmpKey = c->metaContact()->pluginData( this, "gpgKey" );
+		}
+		if( tmpKey.isEmpty() )
+		{
+		//	kdDebug( 14303 ) << "CryptographyPlugin::slotOutgoingMessage: no key selected for one contact" <<endl;
+			return;
+		}
+		keys.append( tmpKey );
+	}
+	if(mAlsoMyKey) //encrypt also with the self key
+		keys.append( mPrivateKeyID );
+
+	QString key = keys.join( " " );
+
+	if(key.isEmpty())
+	{
+		kdDebug(14303) << "CryptographyPlugin::slotOutgoingMessage: empty key" <<endl;
+		return;
+	}
+
+	QString original=msg.plainBody();
+
+	/* Code From KGPG */
+
+	//////////////////              encode from editor
+	QString encryptOptions="";
+
+	//if (utrust==true)
+		encryptOptions+=" --always-trust ";
+	//if (arm==true)
+		encryptOptions+=" --armor ";
+
+	/* if (pubcryptography==true)
+	{
+		if (gpgversion<120) encryptOptions+=" --compress-algo 1 --cipher-algo cast5 ";
+		else encryptOptions+=" --cryptography6 ";
+	}*/
+
+// if (selec==NULL) {KMessageBox::sorry(Kopete::UI::Global::mainWidget(),i18n("You have not chosen an encryption key..."));return;}
+
+	QString resultat=KgpgInterface::KgpgEncryptText(original,key,encryptOptions);
+	if (!resultat.isEmpty())
+	{
+		msg.setBody(resultat,Kopete::Message::PlainText);
+		m_cachedMessages.insert(resultat,original);
+	}
+	else
+		kdDebug(14303) << "CryptographyPlugin::slotOutgoingMessage: empty result" <<endl;
+
+}
+
+void CryptographyPlugin::slotSelectContactKey()
+{
+	Kopete::MetaContact *m=Kopete::ContactList::self()->selectedMetaContacts().first();
+	if(!m)
+		return;
+	QString key = m->pluginData( this, "gpgKey" );
+	CryptographySelectUserKey *opts = new CryptographySelectUserKey( key, m );
+	opts->exec();
+	if( opts->result() )
+	{
+		key = opts->publicKey();
+		m->setPluginData( this, "gpgKey", key );
+	}
+	delete opts;
+}
+
+void CryptographyPlugin::slotForgetCachedPass()
+{
+	m_cachedPass=QCString();
+	m_cachedPass_timer->stop();
+}
+
+void CryptographyPlugin::slotNewKMM(Kopete::ChatSession *KMM) 
+{
+	connect(this , SIGNAL( destroyed(QObject*)) ,
+			new CryptographyGUIClient(KMM) , SLOT(deleteLater()));
+}
+
+
+
+#include "cryptographyplugin.moc"
+
+// vim: set noet ts=4 sts=4 sw=4:
+